Winter driving reduces the activity of lithium-ion batteries, affecting their charging and discharging performance, leading to increased energy consumption, and also affecting their range
Northern car owners should have a deep understanding
Heat pump air conditioning can not only keep the carriage warm, but also save electricity and energy ❗
⭕ Fuel powered vehicle air conditioning heating 🆚 Electric vehicle air conditioning heating
🌸 The difference between electric vehicle heating and fuel vehicle heating
🌱 During the winter air conditioning heating of fuel powered vehicles, the engine waste heat is utilized to
Heating inside the carriage
🌱 There are two ways for electric vehicle air conditioning to heat up:
one ⃣ Powered by vehicle batteries and heated with * PTC heaters
The principle is the same as that of a hair dryer. After heating the resistance wire with electrical energy, the blower blows out the hot air
⚠ All thermal energy comes from batteries 🔋， This method is relatively energy-efficient
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two ⃣ Heating through a heat pump
Even in the low-temperature environment of winter, there is still heat in the air, which works the same principle as household air conditioning
The heat pump "transports" the heat from the external air into the carriage through the principle of evaporation heat absorption condensation heat release
It can warm the carriage and save energy consumption ❣
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⭕ Tesla Thermal Management System
Under different driving environments and modes, the cabin, battery, and various components of the vehicle have different heat requirements
For example, when using a car in cold weather, the battery and carriage need to be heated, or when driving the vehicle to an overcharge station in non severe cold weather, the battery needs to be cooled while the carriage needs to be heated
🌸 The thermal management system can balance the needs of the carriage, battery, and vehicle components, and allocate heat reasonably
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In Tesla's thermal management system, there is a design called "super manifold" that controls the heat transfer path of vehicles under different driving modes, responds to different thermal demand scenarios, transports the heat emitted by the motor into the cab, improves energy utilization, and increases range
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⭕ Tesla thermal management system+heat pump
The heat pump is responsible for transporting heat, and the thermal management system is responsible for maximizing the utilization of heat Z to adapt to more usage scenarios. This combination has a significant effect on improving the vehicle's endurance in winter ⬆
*PTC: Positive Temperature Coefficient
Positive temperature coefficient thermosensitive materials
Heat is generated by applying electricity to thermal materials such as resistance wires/ceramics